6b3a6e6b98
Instead of saying "Google Inc." (which is not always correct) say "The Kubernetes Authors", which is generic.
84 lines
2.9 KiB
Go
84 lines
2.9 KiB
Go
/*
|
|
Copyright 2015 The Kubernetes Authors All rights reserved.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package container
|
|
|
|
import (
|
|
"strings"
|
|
|
|
"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
|
|
"github.com/golang/glog"
|
|
)
|
|
|
|
// HandlerRunner runs a lifecycle handler for a container.
|
|
type HandlerRunner interface {
|
|
Run(containerID string, pod *api.Pod, container *api.Container, handler *api.Handler) error
|
|
}
|
|
|
|
// RunContainerOptionsGenerator generates the options that necessary for
|
|
// container runtime to run a container.
|
|
// TODO(yifan): Remove netMode, ipcMode.
|
|
type RunContainerOptionsGenerator interface {
|
|
GenerateRunContainerOptions(pod *api.Pod, container *api.Container, netMode, ipcMode string) (*RunContainerOptions, error)
|
|
}
|
|
|
|
// Trims runtime prefix from ID or image name (e.g.: docker://busybox -> busybox).
|
|
func TrimRuntimePrefix(fullString string) string {
|
|
const prefixSeparator = "://"
|
|
|
|
idx := strings.Index(fullString, prefixSeparator)
|
|
if idx < 0 {
|
|
return fullString
|
|
}
|
|
return fullString[idx+len(prefixSeparator):]
|
|
}
|
|
|
|
// ShouldContainerBeRestarted checks whether a container needs to be restarted.
|
|
// TODO(yifan): Think about how to refactor this.
|
|
func ShouldContainerBeRestarted(container *api.Container, pod *api.Pod, podStatus *api.PodStatus, readinessManager *ReadinessManager) bool {
|
|
podFullName := GetPodFullName(pod)
|
|
|
|
// Get all dead container status.
|
|
var resultStatus []*api.ContainerStatus
|
|
for i, containerStatus := range podStatus.ContainerStatuses {
|
|
if containerStatus.Name == container.Name && containerStatus.State.Termination != nil {
|
|
resultStatus = append(resultStatus, &podStatus.ContainerStatuses[i])
|
|
}
|
|
}
|
|
|
|
// Set dead containers to unready state.
|
|
for _, c := range resultStatus {
|
|
readinessManager.RemoveReadiness(TrimRuntimePrefix(c.ContainerID))
|
|
}
|
|
|
|
// Check RestartPolicy for dead container.
|
|
if len(resultStatus) > 0 {
|
|
if pod.Spec.RestartPolicy == api.RestartPolicyNever {
|
|
glog.V(4).Infof("Already ran container %q of pod %q, do nothing", container.Name, podFullName)
|
|
return false
|
|
}
|
|
if pod.Spec.RestartPolicy == api.RestartPolicyOnFailure {
|
|
// Check the exit code of last run. Note: This assumes the result is sorted
|
|
// by the created time in reverse order.
|
|
if resultStatus[0].State.Termination.ExitCode == 0 {
|
|
glog.V(4).Infof("Already successfully ran container %q of pod %q, do nothing", container.Name, podFullName)
|
|
return false
|
|
}
|
|
}
|
|
}
|
|
return true
|
|
}
|